[mythtv-users] Backend upgrade question

Michael T. Dean mtdean at thirdcontact.com
Sat Nov 5 17:46:36 UTC 2011

On 11/05/2011 01:25 AM, Matthew Asplund wrote:
> So, I came up with a plan that I thought would work.  I built my new 
> machine, ran a bunch of tests to make sure that there were not 
> hardware problems.  Then I transferred my drives from the old machine 
> to the new machine.  I figured to get it working with the old 
> installation on the new hardware. Then I would do the upgrades from 
> there.
> So, I transferred the disks to the new machine, changed the dhcp entry 
> on my router to give it the same IP address as my old server, and 
> booted it up.  It came up fine, and everything worked, and was in the 
> right place.  But when I tried to connect to the backend from one of 
> my front ends, it connected just fine, but it couldn't find the files. 
>  It had the recordings in the database, but when I tried to play any 
> of them, it said that the files for the shows could not be found.  I 
> checked, and the recordings directories were mounted in the right 
> places, and the files were there.  When I checked out the mythbackend 
> log file, it said that it was looking for files that weren't there, 
> and sure enough, the files weren't there.

Were other recording files there?

> So, is there something funny about moving the database like this. 
>  Does the filename somehow depend on some id field from the machine? 
>  WIll this be fixed by doing a backup and restore of the database?

No.  The only thing that you have to be careful to line up is the host 
name--the recordings must exist on the recording host.  If you change 
host names, you'll need to update the host name in the database using 
the restore script ( 
, but no restore is required).

Most likely your Storage Groups configuration needs fixing to contain 
the directory locations at which you've mounted the recording 
directories.  I'm guessing that this changed.


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